2011. United States. Bureau of Transportation Statistics and United States. Federal Aviation Administration. This point shapefile depicts aircraft landing facilities in the United States and United States Territories. Attribute data is provided on the phys... United States. Bureau of Transportation Statistics.
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2012. United States. Bureau of Transportation Statistics and Institute for Water Resources (U.S.). Navigation Data Center. This point shapefile depicts physical information on commercial facilities at the principal United States coastal, Great Lakes and inland ports. Th... United States. Bureau of Transportation Statistics.
2010, 2011, 2012, and 2013. U.S. Census Bureau. Geography Division and Environmental Systems Research Institute (Redlands, Calif.). This polygon shapefile represents the 2010 Census urban areas in the United States. An urban area comprises a densely settled core of census tracts... Environmental Systems Research Institute (Redlands, Calif.).
2006. Rawson, Peg. This point shapefile depicts major dams in the United States, including Puerto Rico and the U.S. Virgin Islands. The map layer was created by extra... United States. Bureau of Transportation Statistics.
2013. United States. Bureau of Transportation Statistics and United States. Federal Transit Administration. This point shapefile depicts railway stations within the Fixed-Guideway Transit Network, a network database of the nation's fixed-guideway transit ... United States. Bureau of Transportation Statistics.